MCP2515-I/SO

Controllers Overview

The MCP2515-I/SO is a stand-alone CAN controller implementing the CAN V2.0B specification at speeds up to 1 Mb/s. It interfaces with microcontrollers via a high-speed SPI bus operating at 10 MHz in modes 0,0 and 1,1. The device supports standard and extended data frames as well as remote frames with data fields of 0 to 8 bytes. It features three transmit buffers with prioritization and abort capabilities, alongside two receive buffers with prioritized storage. Message filtering is handled by six 29-bit acceptance filters and two 29-bit masks. Operating from a 2.7V to 5.5V supply, it draws 5 mA typically in active mode and 1 μA in sleep mode. The industrial temperature range (-40°C to +85°C) component is housed in an 18-pin SOIC package.

Controllers Feature Summary

• Implements CAN V2.0B specification with support for standard and extended data frames and remote frames.
• Includes hardware message filtering using six 29-bit filters and two 29-bit masks to reduce host MCU overhead.
• Features three transmit buffers with prioritization and abort functions, plus two receive buffers with priority storage.
• Provides a high-speed SPI interface (10 MHz) and optional One-Shot transmission mode for deterministic systems.

Controllers Applications

• Automotive electronic control units requiring CAN V2.0B compliance
• Industrial automation and sensor networks
• Embedded system development platforms

Controllers Procurement Notes

Verify the specific suffix 'I/SO' against the manufacturer's current datasheet to confirm the industrial temperature grade and SOIC-18 package configuration. Ensure the design accounts for the lack of integrated ESD protection on the I/O pins as specified in the electrical characteristics. Confirm that the host microcontroller supports the required SPI clock rates and voltage levels for reliable communication.

Controllers Selection Notes

Select this component when a stand-alone solution for CAN protocol handling is required without integrating a full microcontroller. It is suitable for applications needing hardware-based message filtering to offload processing tasks from the main CPU. Consider the 18-pin SOIC package constraints for PCB layout and ensure adequate thermal management if operating near the upper limits of the industrial temperature range.

Controllers Part Context

The MCP2515 series serves as a dedicated Controller Area Network protocol engine, simplifying integration between microcontrollers and CAN physical layers. The '-I' designation indicates the industrial temperature rating, while '/SO' specifies the surface-mount plastic small-outline integrated circuit package. This part replaces older generations like the MCP2510, offering enhanced throughput and additional filtering capabilities within a compatible pinout structure.

Controllers Replacement Considerations

The MCP2510 is a legacy predecessor with similar functionality but lower performance specifications. Verify compatibility regarding register maps and timing parameters when migrating designs. No direct modern substitutes are listed in the official documentation for this specific package and grade combination.